Zhang Buwei, a top physicist, accidentally traveled to the last years of Hongwu and became a down-and-out scholar whose home was confiscated. At the beginning, the family is destitute, and there is still a frail and sick fiancée Su Qingyuan to support? Don't be afraid! Carrying the top knowledge base of human civilization with you, black powder improvements blast through the grasslands, steam engines drive warships across the seas, glass and cement build the foundation of empires, and assembly line factories crush handicraft workshops around the world! From a rural villager to a court boss, from quelling civil strife to conquering all nations, Zhang Buwei used science to rewrite the destiny of the Ming Dynasty, and used iron and fire to build an empire on which the sun never sets. "The emperor guards the gate of the country? No, the gate of my country is on the seven continents and four oceans!"
